<?php
//引入核心库文件

include 'phpqrcode/phpqrcode.php'; 
 
$value = isset($_POST['mytxt']) ? $_POST['mytxt'] : ""; //二维码内容  
$errorCorrectionLevel = 'L'; //容错级别  
$matrixPointSize = 6; //生成图片大小  
$mylogo = isset($_POST['mylogo']) ? $_POST['mylogo'] : ""; 
//生成二维码图片  
QRcode::png($value, 'qrcode.png', $errorCorrectionLevel, $matrixPointSize, 2); 
$logo = 'logo.png'; //准备好的logo图片  
$QR = 'qrcode.png'; //已经生成的原始二维码图  
 
$logo_rs = "../../../../modals/temp/".time().".png";//文件存放路径 
if ($mylogo == 1) { //带有logo 
    $QR = imagecreatefromstring(file_get_contents($QR)); 
    $logo = imagecreatefromstring(file_get_contents($logo)); 
    $QR_width = imagesx($QR); //二维码图片宽度  
    $QR_height = imagesy($QR); //二维码图片高度  
    $logo_width = imagesx($logo); //logo图片宽度  
    $logo_height = imagesy($logo); //logo图片高度  
    $logo_qr_width = $QR_width / 5; 
    $scale = $logo_width / $logo_qr_width; 
    $logo_qr_height = $logo_height / $scale; 
    $from_width = ($QR_width - $logo_qr_width) / 2; 
    imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height); 
    //输出图片  
    imagepng($QR, $logo_rs); 
    //重新组合图片并调整大小  
} else { //不带logo 
    QRcode::png($value, $logo_rs, $errorCorrectionLevel, $matrixPointSize, 2); 
} 
echo '<img src='.$logo_rs.'>';